EP2907577A1 - Device for biogas facilities for comminuting and milling of liquid-solid mixtures - Google Patents

Device for biogas facilities for comminuting and milling of liquid-solid mixtures Download PDF

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Publication number
EP2907577A1
EP2907577A1 EP15154986.2A EP15154986A EP2907577A1 EP 2907577 A1 EP2907577 A1 EP 2907577A1 EP 15154986 A EP15154986 A EP 15154986A EP 2907577 A1 EP2907577 A1 EP 2907577A1
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EP
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Prior art keywords
drum
wall
balls
liquid
comminuted
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Granted
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EP15154986.2A
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German (de)
French (fr)
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EP2907577B1 (en
Inventor
Maximilian Geisberger
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Geisberger Gesellschaft fur Energieoptimierung mbH
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Geisberger Gesellschaft fur Energieoptimierung mbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/04—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/183—Feeding or discharging devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/183—Feeding or discharging devices
    • B02C17/1835—Discharging devices combined with sorting or separating of material
    • B02C17/1855—Discharging devices combined with sorting or separating of material with separator defining termination of crushing zone, e.g. screen denying egress of oversize material

Definitions

  • the invention relates to a device for use in biogas plants for crushing and grinding of liquid-solid mixtures.
  • ball mills In various economic sectors, eg B. in powder production, ball mills are used, which are charged in batches.
  • the ball mill has a drum with a flap that must be opened to fill the raw material and to be able to remove the ground product after crushing again.
  • Such ball mills are for example made DE 233 164 known in several versions.
  • the crushing is done by a vertically movable rammer, which comminutes the material within a conical container.
  • the grinding bodies designed as balls are located in a vertically arranged cylinder with a sieve bottom, wherein the cylinder is set in vibration.
  • the cylindrical drum is arranged horizontally and is moved about its horizontal axis via a flywheel in reciprocating shaking movements. The material to be ground is filled at one end over a hopper and leaves the drum through an axial opening on the opposite end.
  • liquid-solid mixtures such as liquid fermentation substrates with high fiber content must be crushed.
  • the invention has for its object to provide a suitable for use in biogas plants device for crushing and grinding of liquid-solid mixtures available, in which the material to be ground continuously, z. B. by means of a pump, is passed during the milling process in a closed system.
  • the ball mill has advantageously a rotatably driven about a horizontal axis driven, filled with balls drum which is closed at one end by a cover and at the other end by a bottom, wherein on both end faces a rotary feedthrough for the continuous feed with the comminuting material or intended for the continuous delivery of the comminuted material.
  • the balls ensure that the fiber content of the fermentation substrate and moreover contained solids such as stones, glass or plastics are reliably crushed, so that no damage is caused in downstream pumps.
  • the residence times can be reduced in the downstream fermentation tanks and the biogas yield can be significantly increased. Also as a result, floating layers in fermentation residue stores are significantly reduced and the power consumption for necessary stirring energies is considerably reduced.
  • the two rotary feedthroughs on the front sides of the drum allow a continuous, automatic operation, since a loading flap for the drum is eliminated.
  • the feed with the liquid-solid mixture during the ongoing rotation of the drum done a pump.
  • the cylindrical inner wall of the drum is concentric in a cylindrical outer wall levitating and mechanically decoupled, since it is radially movable as an independent inner drum in the driven outer drum.
  • an insulating layer of elastic material can be used between the inner wall and the outer wall. In this way, not only the noise during operation, which is caused by the impacting balls, significantly reduced, but also the shock and vibration stress of the entire drum, which significantly increases their life. If the inner drum becomes worn, it can be easily removed and replaced with a new inner wall.
  • the ball mill 10 intended for use in biogas plants according to the invention is mounted on a base plate 12, from which two parallel vertical walls 14 extend upwards.
  • Each vertical wall 14 has in the upper area Cylindrical roller bearing 16 for rotatably supporting a pipe socket 18 which is fixedly connected to the bottom 20 and the cover 22 of a cylindrical drum 24.
  • the two pipe sockets 18 on the two end faces of the drum 24 serve as rotary feedthroughs 26, which open into the interior of the drum 24 and fed via which the material to be comminuted on the right in the figures end face of the drum 24 and continuously discharged again on the opposite end face becomes.
  • a screen plate 28th On the left side in the figures of the drum 24 is located between the interior of the drum 24 and the rotary feedthrough 26 for the delivery of the shredded material, a screen plate 28th
  • the interior of the drum 24 is filled with balls formed as balls 30 which are detected during the rotation of the drum 24 about its longitudinal axis of Mitêtchann 32 which extend in the longitudinal direction of the drum 24 and are secured to the inner wall 34.
  • the cylindrical inner wall 34 of the drum 24 is mounted concentrically floating in a cylindrical outer wall 36, wherein between the inner wall 34 and outer wall 36, an insulating layer 38 is inserted from elastic material, which may be formed as a mat.
  • elastic material which may be formed as a mat.
  • FIG. 1 shows, on the outer wall 36 of the drum 24, a sprocket 40 is mounted, with which a drive chain 42 is engaged.
  • the drive chain 42 passes over a pinion 44, which is rotated by a drive motor 46 in rotation, which is supported next to the drum 24 on the bottom plate 12.
  • the speed of the drive motor 46 can be adjusted in order to adapt the grinding process to the respective regrind and its composition of liquid and solids can.

Abstract

Die Vorrichtung dient zur Verwendung in Biogasanlagen zum Zerkleinern und Zermahlen von Flüssig-Feststoffgemischen. Sie besteht aus einer Kugelmühle (10) mit einer um eine horizontale Achse drehbar angetriebenen, mit Kugeln (30) befüllten Trommel (24), die an einer Stirnseite durch einen Deckel (22) und an der anderen Stirnseite durch einen Boden (20) geschlossen ist. An beiden Stirnseiten ist eine Drehdurchführung (26) für die kontinuierliche Beschickung mit dem zu zerkleinernden Gut bzw. für die kontinuierliche Abgabe des zerkleinerten Gutes vorgesehen. Dabei ist es besonders vorteilhaft, wenn die zylindrische Innenwand (34) der Trommel (24) konzentrisch in einer zylindrischen Außenwand (36) freischwebend und mechanisch entkoppelt gelagert ist. Hierzu kann zwischen Innenwand (34) und Außenwand (36) eine Dämmschicht (38) eingesetzt sein.The device is for use in biogas plants for crushing and grinding of liquid-solid mixtures. It consists of a ball mill (10) with a rotatably driven about a horizontal axis, with balls (30) filled drum (24) closed at one end by a cover (22) and at the other end by a bottom (20) is. At both end faces a rotary feedthrough (26) is provided for the continuous feeding of the material to be comminuted or for the continuous delivery of the comminuted material. It is particularly advantageous if the cylindrical inner wall (34) of the drum (24) is mounted concentrically in a cylindrical outer wall (36) free-floating and mechanically decoupled. For this purpose, an insulating layer (38) can be inserted between inner wall (34) and outer wall (36).

Description

Die Erfindung betrifft eine Vorrichtung für die Verwendung in Biogasanlagen zum Zerkleinern und Zermahlen von Flüssig- Feststoffgemischen.The invention relates to a device for use in biogas plants for crushing and grinding of liquid-solid mixtures.

In verschiedenen Wirtschaftszweigen, z. B. bei der Puderherstellung, werden Kugelmühlen eingesetzt, die chargenweise beschickt werden. Hierzu hat die Kugelmühle eine Trommel mit einer Klappe, die geöffnet werden muss, um das Rohmaterial einzufüllen und nach der Zerkleinerung das gemahlene Produkt wieder entnehmen zu können.In various economic sectors, eg B. in powder production, ball mills are used, which are charged in batches. For this purpose, the ball mill has a drum with a flap that must be opened to fill the raw material and to be able to remove the ground product after crushing again.

Derartige Kugelmühlen sind beispielsweise aus DE 233 164 in mehreren Ausführungen bekannt. Bei einer ersten Bauart erfolgt die Zerkleinerung durch einen vertikal beweglichen Stampfer, der das Gut innerhalb eines konischen Behälters zerkleinert. In einem zweiten Beispiel befinden sich die als Kugeln ausgebildeten Mahlkörper in einem stehend angeordneten Zylinder mit einem Siebboden, wobei der Zylinder in Schwingungen versetzt wird. In einem weiteren Ausführungsbeispiel ist die zylindrische Trommel liegend angeordnet und wird um ihre horizontale Achse über einen Schwungkörper in hin- und hergehende Schüttelbewegungen versetzt. Das Mahlgut wird an einer Stirnseite über einen Trichter eingefüllt und verlässt die Trommel durch eine Axialöffnung auf der gegenüberliegenden Stirnseite.Such ball mills are for example made DE 233 164 known in several versions. In a first type, the crushing is done by a vertically movable rammer, which comminutes the material within a conical container. In a second example, the grinding bodies designed as balls are located in a vertically arranged cylinder with a sieve bottom, wherein the cylinder is set in vibration. In a further embodiment, the cylindrical drum is arranged horizontally and is moved about its horizontal axis via a flywheel in reciprocating shaking movements. The material to be ground is filled at one end over a hopper and leaves the drum through an axial opening on the opposite end.

Für den Betrieb von Biogasanlagen müssen Flüssig-Feststoffgemische wie etwa flüssige Gärsubstrate mit hohem Faseranteil zerkleinert werden.For the operation of biogas plants liquid-solid mixtures such as liquid fermentation substrates with high fiber content must be crushed.

Der Erfindung liegt die Aufgabe zugrunde, eine für den Einsatz in Biogasanlagen geeignete Vorrichtung zum Zerkleinern und Zermahlen von Flüssig-Feststoffgemischen zur Verfügung zu stellen, bei der das zu vermahlende Gut kontinuierlich, z. B. mittels einer Pumpe, während des Mahlprozesses in einem geschlossenem System durchgeleitet wird.The invention has for its object to provide a suitable for use in biogas plants device for crushing and grinding of liquid-solid mixtures available, in which the material to be ground continuously, z. B. by means of a pump, is passed during the milling process in a closed system.

Zur Lösung dieser Aufgabe dient die Verwendung einer in Biogasanlagen bisher nicht eingesetzten Kugelmühle gemäß Anspruch 1, die während des Prozesses nicht angehalten und in einem gesonderten Arbeitsgang befüllt oder entleert werden muss. Damit ist auch ein Geruchs- und Gasproblem wie in einem offenen System, beispielsweise mit Trichterzuführung, ausgeschlossen.To solve this problem, the use of a previously not used in biogas plants ball mill according to claim 1, which does not stop during the process and must be filled or emptied in a separate operation. This also excludes an odor and gas problem as in an open system, for example with hopper feed.

Die Kugelmühle hat in vorteilhafter Weise eine um eine horizontale Achse drehbar angetriebene, mit Kugeln befüllte Trommel, die an einer Stirnseite durch einen Deckel und an der anderen Stirnseite durch einen Boden geschlossen ist, wobei an beiden Stirnseiten eine Drehdurchführung für die kontinuierliche Beschickung mit dem zu zerkleinernden Gut bzw. für die kontinuierliche Abgabe des zerkleinerten Gutes vorgesehen ist. Während der Rotation der Trommel sorgen die Kugeln dafür, dass die Faseranteile des Gärsubstrates und darüber hinaus darin enthaltene Feststoffe wie Steine, Glas oder Kunststoffe zuverlässig zerrieben werden, damit in nachgeschalteten Pumpen keine Beschädigungen verursacht werden.The ball mill has advantageously a rotatably driven about a horizontal axis driven, filled with balls drum which is closed at one end by a cover and at the other end by a bottom, wherein on both end faces a rotary feedthrough for the continuous feed with the comminuting material or intended for the continuous delivery of the comminuted material. During the rotation of the drum, the balls ensure that the fiber content of the fermentation substrate and moreover contained solids such as stones, glass or plastics are reliably crushed, so that no damage is caused in downstream pumps.

In Weiterbildung der Erfindung sind an der Innenwand der Trommel in deren Längsrichtung verlaufende Mitnehmerleisten für die Kugeln angebracht. Diese sorgen dafür, dass bei der Drehbewegung der Trommel ausschließlich um ihre Längsachse die Kugeln ständig auf einem Teil des Umfangs der Innenwand mitgenommen werden und vor Erreichen des Scheitels der Trommel auf das zu zerkleinernde Gut herabfallen, wo sie durch ihr Gewicht sowohl Fasermaterial als auch Feststoffe zuverlässig zerreiben und zerkleinern. Mit einer derartigen Ausgestaltung der Trommel ist es im Gegensatz zum Stand der Technik nach DE 233 164 nicht mehr erforderlich, diese in eine hin- und hergehende Drehbewegung oder andere Schwingbewegungen zu versetzen, da die eingesetzte Kugelmühle ohne Schwingbewegungen auskommt und die Zerkleinerung des Mahlgutes nur durch die Kugeln herbeigeführt wird.In development of the invention extending on the inner wall of the drum extending in the longitudinal direction Mitnehmerleisten for the balls. These ensure that during the rotation of the drum exclusively around its longitudinal axis, the balls are constantly taken on a portion of the circumference of the inner wall and fall before reaching the apex of the drum on the material to be crushed, where they by their weight both fiber material and solids reliably grind and mince. With such a design of the drum, it is in contrast to the prior art after DE 233 164 no longer necessary to put them in a reciprocating rotary motion or other oscillatory movements, since the ball mill used without any oscillatory movements and the crushing of the ground material is brought about only by the balls.

Durch das mechanische Bearbeiten der Faseranteile des Gutes können in den nachgeordneten Gärbehältern die Verweilzeiten reduziert und der Biogasertrag deutlich erhöht werden. Auch werden dadurch Schwimmschichten in Gärrestelagern deutlich reduziert und der Stromverbrauch für notwendige Rührenergien erheblich verringert.Through the mechanical processing of the fiber content of the material, the residence times can be reduced in the downstream fermentation tanks and the biogas yield can be significantly increased. Also As a result, floating layers in fermentation residue stores are significantly reduced and the power consumption for necessary stirring energies is considerably reduced.

Die beiden Drehdurchführungen an den Stirnseiten der Trommel ermöglichen einen kontinuierlichen, automatischen Betrieb, da eine Beschickungsklappe für die Trommel entfällt. Die Beschickung mit dem Flüssig-Feststoffgemisch während der laufenden Drehbewegung der Trommel erledigt eine Pumpe.The two rotary feedthroughs on the front sides of the drum allow a continuous, automatic operation, since a loading flap for the drum is eliminated. The feed with the liquid-solid mixture during the ongoing rotation of the drum done a pump.

Nach einer besonders vorteilhaften Weiterbildung der Erfindung ist die zylindrische Innenwand der Trommel konzentrisch in einer zylindrischen Außenwand frei schwebend und mechanisch entkoppelt gelagert, da sie als unabhängige Innentrommel in der angetriebenen Außentrommel radial beweglich ist. Hierzu kann zwischen Innenwand und Außenwand eine Dämmschicht aus elastischem Material eingesetzt sein. Auf diese Weise werden nicht nur das Geräusch während des Betriebes, das durch die aufprallenden Kugeln verursacht wird, deutlich verringert, sondern auch die Stoß- und Schwingungsbeanspruchung der gesamten Trommel, wodurch sich deren Lebensdauer merklich erhöht. Bei einem Verschleiß der Innentrommel lässt sich diese problemlos ausbauen und durch eine neue Innenwand ersetzen.According to a particularly advantageous embodiment of the invention, the cylindrical inner wall of the drum is concentric in a cylindrical outer wall levitating and mechanically decoupled, since it is radially movable as an independent inner drum in the driven outer drum. For this purpose, an insulating layer of elastic material can be used between the inner wall and the outer wall. In this way, not only the noise during operation, which is caused by the impacting balls, significantly reduced, but also the shock and vibration stress of the entire drum, which significantly increases their life. If the inner drum becomes worn, it can be easily removed and replaced with a new inner wall.

In Weiterbildung der Erfindung ist in Durchlaufrichtung des Gutes in der Trommel vor der Drehdurchführung für die Abgabe des Gutes eine Siebplatte angebracht, die größere, nicht zerkleinerte Feststoffe zurückhält, so dass es genügt, die Trommel nur in längeren Zeitabständen zu reinigen.In a further development of the invention in the passage direction of the goods in the drum before the rotary feedthrough for the delivery of the goods a screen plate is mounted, the larger, not crushed solids withholds, so that it is sufficient to clean the drum only at longer intervals.

Die Erfindung ist nachstehend an einem Ausführungsbeispiel erläutert, das in der Zeichnung dargestellt ist. Es zeigen:

Figur 1
die schematische Ansicht einer Vorrichtung mit Kugelmühle gemäß der Erfindung und
Figur 2
die Trommel der Kugelmühle der Figur 1 im aufgeschnittenen Zustand.
The invention is explained below with reference to an embodiment which is shown in the drawing. Show it:
FIG. 1
the schematic view of a device with ball mill according to the invention and
FIG. 2
the drum of the ball mill the FIG. 1 in the cut state.

Wie die Figuren zeigen, ist die für den Einsatz in Biogasanlagen bestimmte Kugelmühle 10 gemäß der Erfindung auf einer Bodenplatte 12 angebracht, von der sich zwei parallele Vertikalwände 14 nach oben erstrecken. Jede Vertikalwand 14 hat im oberen Bereich ein Zylinderrollenlager 16 zur drehbaren Lagerung eines Rohrstutzens 18, der fest mit dem Boden 20 bzw. dem Deckel 22 einer zylindrischen Trommel 24 verbunden ist. Die beiden Rohrstutzen 18 an den beiden Stirnseiten der Trommel 24 dienen als Drehdurchführungen 26, die in den Innenraum der Trommel 24 münden und über die das zu zerkleinernde Gut auf der in den Figuren rechten Stirnseite der Trommel 24 zugeführt und auf der gegenüberliegenden Stirnseite kontinuierlich wieder abgegeben wird.As the figures show, the ball mill 10 intended for use in biogas plants according to the invention is mounted on a base plate 12, from which two parallel vertical walls 14 extend upwards. Each vertical wall 14 has in the upper area Cylindrical roller bearing 16 for rotatably supporting a pipe socket 18 which is fixedly connected to the bottom 20 and the cover 22 of a cylindrical drum 24. The two pipe sockets 18 on the two end faces of the drum 24 serve as rotary feedthroughs 26, which open into the interior of the drum 24 and fed via which the material to be comminuted on the right in the figures end face of the drum 24 and continuously discharged again on the opposite end face becomes.

Auf der in den Figuren linken Stirnseite der Trommel 24 befindet sich zwischen dem Innenraum der Trommel 24 und der Drehdurchführung 26 für die Abgabe des zerkleinerten Gutes eine Siebplatte 28.On the left side in the figures of the drum 24 is located between the interior of the drum 24 and the rotary feedthrough 26 for the delivery of the shredded material, a screen plate 28th

Der Innenraum der Trommel 24 ist mit als Kugeln 30 ausgebildeten Mahlkörpern gefüllt, die während der Drehbewegung der Trommel 24 um ihre Längsachse von Mitnehmerleisten 32 erfasst werden, welche in Längsrichtung der Trommel 24 verlaufen und an deren Innenwand 34 befestigt sind.The interior of the drum 24 is filled with balls formed as balls 30 which are detected during the rotation of the drum 24 about its longitudinal axis of Mitnehmerleisten 32 which extend in the longitudinal direction of the drum 24 and are secured to the inner wall 34.

Die zylindrische Innenwand 34 der Trommel 24 ist konzentrisch in einer zylindrischen Außenwand 36 frei schwebend gelagert, wobei zwischen Innenwand 34 und Außenwand 36 eine Dämmschicht 38 aus elastischem Material eingesetzt ist, die als Matte ausgebildet sein kann. Dadurch ergibt sich nicht nur eine Schalldämmung, sondern auch eine mechanische Entkopplung zwischen Innenwand 34 und Außenwand 36. Auf diese Weise werden die während des Mahlvorgangs von den Kugeln 30 auf die Innenwand 34 ausgeübten Stöße gedämpft, wodurch die Außenwand 36 und damit die gesamte Trommel 10 nur einer deutlich reduzierten Schwingungsbeanspruchung ausgesetzt ist, was deren Lebensdauer beträchtlich verlängert.The cylindrical inner wall 34 of the drum 24 is mounted concentrically floating in a cylindrical outer wall 36, wherein between the inner wall 34 and outer wall 36, an insulating layer 38 is inserted from elastic material, which may be formed as a mat. This results in not only a sound insulation, but also a mechanical decoupling between the inner wall 34 and outer wall 36. In this way, the forces exerted on the inner wall 34 by the balls 30 during the milling process shocks are damped, whereby the outer wall 36 and thus the entire drum 10th is exposed only to a significantly reduced vibration stress, which prolongs their life considerably.

Wie Figur 1 zeigt, ist an der Außenwand 36 der Trommel 24 ein Zahnkranz 40 angebracht, mit dem eine Antriebskette 42 in Eingriff ist. Die Antriebskette 42 läuft über ein Ritzel 44, das von einem Antriebsmotor 46 in Drehung versetzt wird, welcher neben der Trommel 24 auf der Bodenplatte 12 abgestützt ist. Die Drehzahl des Antriebsmotors 46 kann eingestellt werden, um den Mahlvorgang an das jeweilige Mahlgut und dessen Zusammensetzung aus Flüssigkeit und Feststoffen anpassen zu können.As FIG. 1 shows, on the outer wall 36 of the drum 24, a sprocket 40 is mounted, with which a drive chain 42 is engaged. The drive chain 42 passes over a pinion 44, which is rotated by a drive motor 46 in rotation, which is supported next to the drum 24 on the bottom plate 12. The speed of the drive motor 46 can be adjusted in order to adapt the grinding process to the respective regrind and its composition of liquid and solids can.

Claims (8)

Vorrichtung für die Verwendung in Biogasanlagen zum Zerkleinern und Zermahlen von Flüssig-Feststoffgemischen, gekennzeichnet durch eine Kugelmühle (10) mit einer um eine horizontale Achse drehbar angetriebenen, mit Kugeln (30) befüllten Trommel (24), die an einer Stirnseite durch einen Deckel (22) und an der anderen Stirnseite durch einen Boden (20) geschlossen ist, wobei an beiden Stirnseiten eine Drehdurchführung (26) für die kontinuierliche Beschickung mit dem zu zerkleinernden Gut bzw. für die kontinuierliche Abgabe des zerkleinerten Gutes vorgesehen ist.Apparatus for use in biogas plants for comminuting and grinding liquid-solid mixtures, characterized by a ball mill (10) with a drum (24) rotatably driven about a horizontal axis and filled with balls (30), which are closed at one end by a lid (10). 22) and on the other end side by a bottom (20) is closed, wherein on both end faces a rotary feedthrough (26) is provided for the continuous feeding of the material to be comminuted or for the continuous delivery of the comminuted material. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass an der Innenwand (34) der Trommel (24) in deren Längsrichtung verlaufende Mitnehmerleisten (32) für die Kugeln (30) angebracht sind.Apparatus according to claim 1, characterized in that on the inner wall (34) of the drum (24) in the longitudinal direction extending Mitnehmerleisten (32) for the balls (30) are mounted. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass in Durchlaufrichtung des Gutes in der Trommel (24) vor der Drehdurchführung (26) für die Abgabe des Gutes eine Siebplatte (28) angebracht ist.Apparatus according to claim 1 or 2, characterized in that in the passage direction of the goods in the drum (24) in front of the rotary feedthrough (26) for the delivery of goods a screen plate (28) is mounted. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zylindrische Innenwand (34) der Trommel (24) konzentrisch in einer zylindrischen Außenwand (36) freischwebend und mechanisch entkoppelt gelagert ist.Device according to one of the preceding claims, characterized in that the cylindrical inner wall (34) of the drum (24) is mounted concentrically in a cylindrical outer wall (36) free-floating and mechanically decoupled. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass zwischen Innenwand (34) und Außenwand (36) eine Dämmschicht (38) aus elastischem Material eingesetzt ist.Apparatus according to claim 4, characterized in that between the inner wall (34) and outer wall (36) an insulating layer (38) made of elastic material is used. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass an der Außenwand (36) der Trommel (24) ein Zahnkranz (40) angebracht ist, mit dem eine Antriebskette (42) in Eingriff ist.Apparatus according to claim 5, characterized in that on the outer wall (36) of the drum (24) a sprocket (40) is mounted, with which a drive chain (42) is engaged. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass neben der Trommel (24) ein Antriebsmotor (46) für den Drehantrieb der Kette (42) angeordnet ist.Apparatus according to claim 6, characterized in that in addition to the drum (24), a drive motor (46) for the rotary drive of the chain (42) is arranged. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Drehzahl des Antriebsmotors (46) einstellbar ist.Apparatus according to claim 7, characterized in that the rotational speed of the drive motor (46) is adjustable.
EP15154986.2A 2014-02-13 2015-02-13 Device for biogas facilities for comminuting and milling of liquid-solid mixtures Not-in-force EP2907577B1 (en)

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Cited By (6)

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CN106732207A (en) * 2016-12-21 2017-05-31 河南省少林重型机器有限公司 A kind of multiphase dynamic response device
DE202017002406U1 (en) 2017-05-05 2017-06-29 Mairec Edelmetallgesellschaft Mbh Apparatus for comminuting regrind
CN107029835A (en) * 2017-05-10 2017-08-11 安徽捷运矿山机械有限公司 A kind of ore dressing autogenous tumbling mill
CN110976035A (en) * 2019-11-25 2020-04-10 衡阳阳光陶瓷有限公司 Ceramic raw material ball mill that processing is divided to multicavity room
CN111686877A (en) * 2020-06-11 2020-09-22 扬州市龙伟食品有限公司 Efficient sundry-preventing pulping machine for production of dried tofu raw materials
CN114392822A (en) * 2022-02-25 2022-04-26 安徽理工大学 Pig feed batching system

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CN107362871B (en) * 2017-08-31 2023-04-07 新乡市宏峰矿山设备有限公司 Novel belt type energy-saving ball mill
CN107790236B (en) * 2017-11-17 2022-10-21 湖北科技学院 Iron slag ball-milling washing screening all-in-one
CN108620190B (en) * 2018-05-03 2020-09-29 邵阳市新华材料科技有限责任公司 Mining ball mill
DE102019133787A1 (en) 2019-12-10 2021-06-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Rotating grinding media mill for the production of polyisoprene and / or other non-polar materials
CN110882764A (en) * 2019-12-13 2020-03-17 江苏吉能达环境能源科技有限公司 Cement grinding process and equipment thereof
CN111715351A (en) * 2020-06-08 2020-09-29 西安宝鑫自动化设备有限公司 Noise elimination ball mill
CN112058412B (en) * 2020-09-04 2021-11-02 浙江省东阳市开源金属制品有限公司 Horizontal multi-stage rolling ball mill
CN112675983B (en) * 2020-12-23 2021-09-14 佛山市三水金晖建筑材料有限公司 Mining ball mill

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CH365933A (en) * 1959-02-16 1962-11-30 Holecz Ferenc Ball mill
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106732207A (en) * 2016-12-21 2017-05-31 河南省少林重型机器有限公司 A kind of multiphase dynamic response device
DE202017002406U1 (en) 2017-05-05 2017-06-29 Mairec Edelmetallgesellschaft Mbh Apparatus for comminuting regrind
EP3398685A1 (en) 2017-05-05 2018-11-07 MAIREC Edelmetallgesellschaft mbH Device for comminuting material
CN107029835A (en) * 2017-05-10 2017-08-11 安徽捷运矿山机械有限公司 A kind of ore dressing autogenous tumbling mill
CN110976035A (en) * 2019-11-25 2020-04-10 衡阳阳光陶瓷有限公司 Ceramic raw material ball mill that processing is divided to multicavity room
CN111686877A (en) * 2020-06-11 2020-09-22 扬州市龙伟食品有限公司 Efficient sundry-preventing pulping machine for production of dried tofu raw materials
CN114392822A (en) * 2022-02-25 2022-04-26 安徽理工大学 Pig feed batching system

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